It is possibly a Goz issue (zbrush). I have had problems with goz and Poser. So I have force reinstalled and cleared cache in zbrush (that's how I fixed the poser problem) as well as used goz from DS4.5 to Zbrush and back - worked no problem.

I have also completely uninstalled and reinstalled Daz studio 4.5 official release (the same one I was using).

One final note. When I start up DS and check the task manager - the Database is NOT running.

I just know that my database was working fine ever since I installed DS4.5 official release.

Then I have been doing a figure in zbrush that I have taken in to DS. After a few days suddenly my database went crazy. Started showing exclamation marks. Died. Resurected in a messed up state and then stopped running altogether.

One thing that I did do was I stopped my database and then restarted as per a tutorial suggestion - I did that while Daz Studio was NOT running.

Before I try the fix you posted here I wanted to know if I am going to loose all my category links I've created with my content. The Daz/poser file structures are a nightmare for me to find anything so I have all my content organized under categories in the content library. I really really don't want to have to recreate that again if I don't have to. If I do the fix posted above...ie uninstall and re-install Daz and the CMS will I loose all those connections? And if I do, is there a way I can back those up now before I uninstall?

Yes, you will lose your customisations if you remove the database as a whole. Try stopping the CMS (if it isn't already), going to the folder with the database files in it and removing only the .ind file, then restart the CMS and then DS. That may fix the issue, and won't remove your existing customisations.

It seems like it's the older Gen 3 poses (and some older Gen 4) that cause the CMS to shut down. If I uninstall them, Daz goes back to working as normal. Are older poses a known issue or is that something I should bug report?